Click Basic Settings on the left panel.
In the middle part you will see "Does you Internet connection regquire a login?"

This should be set to NO.

Next is "Internet IP address", since you want to set static IP address, this should be on "Use the following IP address".
You will have to enter IP adress, subnet Mask and Defaulte gateway, these values you need to put in should be provided by your Internet provider.

You will also see "Domain Name server Address", set it to "Use the Following DNS server" values you need to enter should also be provided by your Internet Provider. Once you're done entering them, click Apply on the bottom. Hope it works